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參數(shù)資料
| 型號： | HI7191IP |
| 廠商： | Intersil |
| 文件頁數(shù)： | 1/25頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT PROGBL SER 20-PDIP |
| 標(biāo)準(zhǔn)包裝： | 18 |
| 位數(shù)： | 24 |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 32.5mW |
| 電壓電源： | 模擬和數(shù)字，雙 ± |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 20-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 20-PDIP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 1 個差分，單極；1 個差分，雙極 |
1
FN4138.8
HI7191
24-Bit, High Precision, Sigma Delta A/D
Converter
The Intersil HI7191 is a monolithic instrumentation, sigma
delta A/D converter which operates from
±5V supplies. Both
the signal and reference inputs are fully differential for
maximum flexibility and performance. An internal
Programmable Gain Instrumentation Amplifier (PGIA)
provides input gains from 1 to 128 eliminating the need for
external pre-amplifiers. The on-demand converter
auto-calibrate function is capable of removing offset and gain
errors existing in external and internal circuitry. The on-board
user programmable digital filter provides over 120dB of
60/50Hz noise rejection and allows fine tuning of resolution
and conversion speed over a wide dynamic range. The
HI7190 and HI7191 are functionally the same device, but the
HI7190 has tighter linearity specs.
The HI7191 contains a serial I/O port and is compatible with
most synchronous transfer formats including both the
Motorola 6805/11 series SPI and Intel 8051 series SSR
protocols. A sophisticated set of commands gives the user
control over calibration, PGIA gain, device selection, standby
mode, and several other features. The On-chip Calibration
Registers allow the user to read and write calibration data.
Features
20-Bit Resolution with No Missing Code
0.0015% Integral Non-Linearity (Typ)
20mV to
±2.5V Full Scale Input Ranges
Internal PGIA with Gains of 1 to 128
Serial Data I/O Interface, SPI Compatible
Differential Analog and Reference Inputs
Internal or System Calibration
120dB Rejection of 60/50Hz Line Noise
Settling Time of 4 Conversions (Max) for a Step Input
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
Process Control and Measurement
Industrial Weight Scales
Part Counting Scales
Laboratory Instrumentation
Seismic Monitoring
Magnetic Field Monitoring
Related Literature
Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
TB348 “HI7190/1 Negative Full Scale Error vs
Conversion Frequency”
AN9504 “A Brief Intro to Sigma Delta Conversion”
TB329 “Intersil Sigma Delta Calibration Technique”
AN9505 “Using the HI7190 Evaluation Kit”
TB331 “Using the HI7190 Serial Interface”
AN9527 “Interfacing HI7190 to a Microcontroller”
AN9532 “Using HI7190 in a Multiplexed System”
AN9601 “Using HI7190 with a Single +5V Supply”
Ordering Information
PART
NUMBER
PART
MARKING
TEMP.
RANGE
(°C)
PACKAGE
PKG.
DWG. #
HI7191IP
-40 to 85 20 Ld PDIP
E20.3
HI7191IPZ
(See Note)
HI7191IPZ
-40 to 85 20 Ld PDIP*
(Pb-free)
E20.3
HI7191IB
-40 to 85 20 Ld SOIC
M20.3
HI7191IBZ
(See Note)
HI7191IBZ
-40 to 85 20 Ld SOIC
(Pb-free)
M20.3
HI7191IBZ-T
(See Note)
HI7191IBZ
-40 to 85 20 Ld SOIC
Tape and Reel
(Pb-free)
M20.3
HI7190EVAL
Evaluation Kit
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
*Pb-free PDIPs can be used for through hole wave solder processing
only. They are not intended for use in Reflow solder processing
applications.
Data Sheet
June 1, 2006
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003, 2005, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HI7191IPZ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC W/ANNEAL ADC 24BIT SIGMADELTA 20PDIP RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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